Surgery or embolization for varicoceles in subfertile men.

@article{Kroese2012SurgeryOE,
  title={Surgery or embolization for varicoceles in subfertile men.},
  author={Anja C. J. Kroese and Natascha M de Lange and John A. Collins and J L H Evers},
  journal={The Cochrane database of systematic reviews},
  year={2012},
  volume={10},
  pages={
          CD000479
        }
}
BACKGROUND A varicocele is a meshwork of distended blood vessels in the scrotum, usually left-sided, due to dilatation of the spermatic vein. Although the concept that a varicocele causes male subfertility has been around for more than 50 years now, the mechanisms by which a varicocele would affect fertility have not yet been satisfactorily explained. Neither is there sufficient evidence to explain the mechanisms by which varicocelectomy would restore fertility. Furthermore, it has been… 

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